Rashed Al-Sa`ed

8 Questions 13 Answers 0 Followers

Questions related from Rashed Al-Sa`ed

Total-N of a full scale MBR facility exceeds 20 mg/L?

A full scale MBR facility treating domestic WW has an effluent with a total N of 20 mg/L? However, [s] of NH4-N and NO3-N is 2 mg/L? NO2-N is not detectable. Hence, TKN analysis gave 1 mg N as...

29 April 2014 2,591 2 View

Does anyone have experience with blowers being in full operation, but DO value showing zero?

A large scale activated sludge system has experienced an illicit industrial discharge of unknown origin. Wastewater analysis showed Petrol derivatives of variable carbon lengths [c3-c20]. Despite...

03 March 2014 6,587 8 View

Does MLSS content have impacts oxygenation efficacy of MBR facility?

In an MBR facility treating domestic WW, the DO content has decreased significantly. Do you have experience or articles published on this topic? How would high content of MLSS impacts the...

03 February 2014 9,335 6 View

Which analytical method is reliable to analyse NO3-N [mg/L] for MBR effluent for regulatory monitoring?

APHA standard methods is used commonly for nitrate-N analysis in treated water. Recently, NO3-N measurements showed unreliable results, against the investigators expectations, that NO3-N in an MBR...

20 January 2014 9,972 4 View

What specific mechanism is behind membrane biofouling in MBR systems?

Membrane based bioreactors gained wide application trends in the Mediterranean and Gulf states for both domestic, industrial and municipal wastewater treatment and effluent reclamation. Major pros...

18 December 2013 3,454 3 View

How much is the difference in energy consuption at sewage treatment plants?

Different treatment processes consume energy demand of variable quantities based on the removal paths of different pollutants, oxygen requirement, environmental conditions, and effluent...

18 December 2013 8,383 1 View

What are the potential impacts of climate change on the design and OM&R of sewage works?

The engineering design of sewage works depends on a lot of input data including the population to be served, the daily wastewater flow, the sewer system type, the temperature, and the pollution...

28 February 2013 8,829 1 View

Are there sustainable strategies pertinent to management of transboundary environmental issues under conflict and power asymmetry conditions?

Environmental pollution caused by raw sewage discharge is increasing annually, hence posing health and environmental risks for both nations along the Green-Line. Now, unilateral action on both...

27 February 2013 5,977 2 View